Mack is 6-foot-4, 315 pounds and, at least on Tuesday night, was one of the top uncommitted offensive linemen on national recruiting boards. ESPN has him rated as the No. 2 offensive guard nationally. Rivals says he's the No. 6 offensive guard. Scout says he's the fifth best lineman.

Mack gives Auburn 23 commitments for the 2010 signing class. The Tigers also welcomed five newcomers wen the spring semester started this month. They count back to the 2009 class. They're eligible to participate in spring practice.